Electronic Reading Room at Regulations.gov

Note: EPA no longer updates this information, but it may be useful as a reference or resource.

The Office of Pesticide Programs evaluates scientific data submitted by pesticide registrants in support of pesticide registration to assess potential human health and environmental effects. These studies are conducted with active ingredients, inert ingredients, and product formulations in accordance with EPA guidelines, and generally fall under the subject areas of toxicology, environmental fate and groundwater, ecological effects, residue chemistry, product chemistry, and efficacy. These evaluations are called science reviews or data evaluation records (DERs).

Due to a variety of circumstances, some records cannot be made fully accessible under Section 508 of the Rehabilitation Act of 1973 (as amended in 1998), therefore, if a person requesting a document needs accommodations due to a disability, additional assistance is available. The following three individuals serve as direct contacts by email and telephone to assist individuals who may need information not accessible to them:

Chemical Search

Chemical Search is a new, web-based application designed to provide users easy access to published regulatory and scientific information on pesticide active ingredients. This applications uses a simple search engine to easily locate a wide variety of published information, including significant regulatory decisions, reviews of scientific studies that support registration decisions, reregistration and registration review information, and opportunities for public comment. The application also includes a number of links to other valuable sources of information including tolerance or maximum residue levels, and reference information from other EPA programs and other federal agencies.

How to obtain science reviews not posted to Chemical Search or the Reading Room

Science review documents are no longer being posted to Chemical Search or the Reading Room. However, they can be requested by submitting a FOIA request.

How to search the indices alphabetically

Chemicals are listed alphabetically by name. Leading numbers and prefixes are ignored; for example 2-4,D will be found under D and sec-Butylamine will be found under B. Most of the listed chemicals are active ingredients. Some product names and synonyms have been included. The letter-links below will take you to the pesticide names; the names link to individual indices.

How to search the indices numerically

Chemicals are listed numerically by their six-digit PC Code. There are five separate ranges of PC Codes from which to choose. The selected PC Code number range will take you to the list of chemicals by PC Code which fall under the selected range. Please note that some product names and synonyms have been included. You may now select the desired PC Code below.